Box for loose-leaf holders



Filed July 25, 194s 2 Sheets-Sheet 1 FIG- l- FI G. 4-

..2 llllNhNlllllrllllnnn. M HIIIWHIMHIIMWIIHIIINUIIHWHIIMMHH WU H Un ll .UHHHUJIMM |||u|.. "l, "v/ \w /z. 4 8 r|\ Jn 8 f( 8 1J l/ Il n U 3 gli.; 4r. f I l M 7/ mM 5 n/ l f INVENTOR jm. 3L W@ E. T. BELMONT 2,495,637

BOX FOR LOOSE-LEAF HOLDERS Filed July 25, 1948 2 Sheets-Sheet 2 @//f im NWII. 171.4 4 y UP w M.MUH1i N MH u w, im y m mm m N m w mm mi m W- m WM W mm m W ,M11 n7/ 1 z OM @Mii I m m l W w W Patented `Fan. 3l, 1950 so sur es. en-

havention: relates;r tor boxes' and.like-re. ceptaoles' such; as.. are -Inadev in:- most. part from.. sheenA material, and compriseA two: telescopically.

associated. sections.: that.` aref; hingedly connected:l

sof thatA thealoox.;r or: the.; likef cani loek opened.. and,v closedr.

The primary object of the invention is to provide improved, hornV or ,f receptacle. of.V the! class referred .towhichwill beparticnlarly constructed: totadaptitmto, befr incorporated ,vvitliing`A` and con? stitutefa partv of, .at loosefleaf binden which .may beni-.otherwise ordinary. construitidon'.v

lit'..,is;ralso`r andmportanttobject of.. theeinvention;` to provide a box or receptacle of the classe-vreey ferri-.ed.to..wherein. the..hing or.. hingescOnneeting the.- two.- sections. thereof, is.. or. areA particularly. constructed .and arranged.A to provide `for varyingt the relationship.'` of. the.. two.. sections: thereby4 to.. vary. the. voluminal. capacity,` of/.thesbox-.or the.

lilierin. its closed condition.. as may. be desired. or..

requiredl.

To these ends I' have provided an improved boxtoithe. class described..which, in the preferred embodiment' thereof, may be constructed as set forth in the following description,..the novel features ofthe invention -being particularly pointed out and dened in the claims at the close of the description.

In the accompanying drawings:

Figure 1 is a top plan view of my improved box.

Figure 2 is an end view of a loose leaf binder having incorporated therein the box shown in Fig. 1.

Figures 3, 4, 5, 6 and 7 are details of each of the two hinges of the box shown ink Figures l and 2.

Figure 8 is an enlarged plan view, partly broken away and in section, of an end portion of the box shown in Figures l and 2.

Figure l9 is a section on line 9--9'01e Figure 8.

The box illustrated in Fig. 1 and Figs. 3 to 9. inclusive, comprises a body section A and a top closure section B, each of said two sections being made from any suitable sheet material such as sheet metal, synthetic thermoplastic sheet material, or the like, and both of which are preferably capable of being molded to shape. Examples of thermoplastic sheet materials of the kind referred to are found on the market under the trade name of Lucite, Vinylite,v etc.

Body section A is of rectangular shape and comprises a bottom wall panel I0A bordered by four relatively perpendicular side walls Il, I2, I3 and It. Closure section Bis also of rectangular shape and comprises a top wall panel I5 5j crains.- (ol. zoos-19..

matelyfthe sanref'zdepthfias'zefthe. sidefwellsorzbodyr sectioniA. The .closureseotiorrlissmade. somes-- whatv larger: interiorlmthanisection.Azsorthat .theft nested: at@ onef; sides'- off; the. box by'n two: metallicA hinges. 0,5., Figsr. 1., and;v 9, and-,z eachhiru-FHI.;` cornprisesattireeslieetemetal strapsiZ, 2 I.;- andan;V and a pintlefi 2.3;. Theestrap..` 20 isf. Urshapedz to..Y adapt it to receive within its crotclithasideiwall I I 1 oft body. section-Aeon .which ,it mounted for sliding;` adjustment:towarand.- from Ithe: top1 ofiY said.. wall, showin in. Figs; 8:: and 9: The: exetrernitygI ofeonefof-.the legs; off. this :Urshaped strap-1 is. formed.; with-na pair.`- of.v spacedfapart., eyesf. 2li,- 24;. thattaroc'cupied. by.- thefpintleeZB; Theiop,- positetv legg; ofi. this@ U shaped strapthatis within. theifbox section-.1 pendi'cularg lug;2.5..-tl:1at..is,-,` made?. with. ai threaded.. apetureV 2.62.- that).l is;`V occupied.. by; the threaded?V end of the shank of thumb screw 2l is reduced in diameter and rotatably conned against axial displacement in either direction within an aperture provided through the bottom wall I0 of box section A. The upper end of the shank of thumb screw 21 is provided with a circular head 28 which provides for convenient manual rotation of the thumb screw when adjusting the U-shaped strap 20 toward and from the top of wall II of section A.

Between the two eyes 2 4 of the U-shaped strap 20 is tted the lower end of a second strap 2|', Figs. 5 and 6, said lower end being formed with an eye 29 that is occupied by the pintle 23. This second strap is formed with two or more apertures 30, Fig. 6, for the reception of rivets 3|, Fig. 9, by which said strap is xedly mounted upon the outer face ofthe wall II of section A.

The third strap 22, Fig. 7, is shown as a at semi-circular plate having oppositely disposed corners provided with'alined eyes 32 that are occupied by the pintle 2.3., said eyes being spaced apart a distance to receive between them the pair of eyes 24 of strapz20. At its middle this strap 22 is made withav slot 33 that is disposed at right angles to the axes of .the eyes 32.

As above described box is constructed for use in connection with a? holder 34 for loose leaves 35, each leaf, as usual, being provided .with apertures for receivingv the usual split rings whereof providedwith aarelativelyypeitf one is shown at 36, and said rings bein-g fixed to the intermediate back portion of the holder. When so used the rings of the holder are caused to extend through the slots 33 of straps 22 and when straps 22 are thus engaged with the rings, and the latter are closed, the box is securely locked to the holder but is freely adjustable angularly on the rings as well as on the axis of pintle 23.

As means for, supporting the. two sections A and B of the box in parallelism when the box is closed whatever be the adjustment of the two straps ZEI, I may equip the side wall I3 of body section A with a pair of adjustable'props D each of which comprises a U-shaped prop member 3'I whose crotch is occupied by the upper portionof said side wall I3. This prop member frictionally grips the wall I3 and the inner leg thereof is made at its lower extremity with a laterally and horizontally projecting lug 38 provided with a threaded aperture that is occupied by the threaded shank of a thumb screw 39, Fig. 9. YThe lower end of the shank of thumb screw 39 is reduced in diameter and rotatably conned against axial displacement in either direction within an aperture provided through the bottom wall of box section A. The upper end of the shank of thumb screw39 is provided with a circular head 4I! which provides for convenient manual rotation of the thumb screw to-adjust the U-shaped prop member 31 toward or from the top of ywall I3 of section A as may be required to place each member 31 horizontally opposite one of the straps 20.

What I claim is:

1. In a box of the class described, in combination, two box sections having side walls adapted to be fitted telescopically together to close the box; a hinge structure connecting two proximate relatively parallel sidewalls of 'said -sections and adjustably connected with one of said side walls to provide for adjustment of said hinge structure on said wall to vary the voluminal capacity vof the box when in its closed condition, and means for fixing said hinge structure in adjusted position on said wall while permitting said sections tovbe pivotally adjusted relatively on said hinge structure to open and close the box.

2. In a box of the class described, in combination, two box sections having side walls adapted to be fitted telescopically together to close the box; a hinge structure connecting two proximate relatively parallel side walls of the box, said hinge structure comprising a strap fixedly mounted upon one of said two proximate side walls, a strap adjustably mounted upon the other of said two side walls, and a pintle connecting said two straps; and means carried by the section of said other side wall and manually operable to adjust said last-mentioned strap on said other side wall thereby to vary the yoluminal capacity of the box when in its closed condition while permitting said sections to be pivotally adjusted relatively on said hinge structure to open and close the box.

3. In a box of the class described, the combination of claim 2 wherein said last-mentioned manually operable means comprises .la thumb screw having .a threaded shank whereof one end vis ro'' tatably connected with the section of said other side wall and whereof the intermediate portion occupies, and is in threaded engagement with, a threaded aperture of said adjustably mounted strap.

4. In a 4box of the class described, the combination of claim 2 wherein said hinge structure also comprises a third strap pivotally supported by said pintle and made with an aperture for engagement with an element of a loose-leaf holder by which element the box is retained within the latter.

5. In a box of the class described, the combination of claim 2 wherein a prop is adjustably mounted upon a side wall of one of said sections other than the two proximate side walls referred to in claim 2, and wherein means is provided for holding said prop in position to maintain said two box sections in parallelism when the box is closed.

ELLIOTT T. BELMONT.

No references cited. 

